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Plain diffuser LCA

DescriptionLCA is a circular diffuser with an unperforated face plate thatcan be used for both supply and exhaust air. LCA is suitablefor the horizontal supply of cooled air where a high impulseis required. It can be equipped with accessories of varioustypes in order to achieve optimum function. Installing anLCA diffuser in a plenum box type MBA can help to achievea stable airflow to the diffuser as well as realise the potentialfor individual adjustment.

• Suitable for both supply and exhaust air• Suitable for the horizontal supply of cooled air• High impulse• Option of 1, 2 and 3-way supply air• Discrete design

MaintenanceThe face plate can be removed to enable cleaning of internalparts or to gain access to the duct or box. The visible partsof the diffuser can be wiped with a damp cloth.

Dimensions

ØU = ceiling grid opening

Ordering exampleLCA aaa

ProductSize

Ød1Size

ØDmm

ØUmm

Free areaA (m2)

m kg

100 240 200 0,010 1,00

125 240 200 0.011 1,00

160 300 260 0.0165 1.50

200 360 320 0.023 2.30

250 460 420 0.03 3.40

315 540 500 0.037 4.60

400 540 500 0.037 4.60

Ø U

Ø D

702237

Ø d1

Materials and finishMaterial: Galvanised steelStandard finish: Powder-coated Standard colour: White RAL 9010, gloss 30

The diffuser is available in other colours. Please contact Lindab’s sales department for further information.

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Plain diffuser LCA

Accessories

Balancing damper DRZ

Blending profiles (set) DAZ

Mounting brackets DDZ

Order - accessories

Module plate LM

Dimensions

MBA

LCA + MBA

Product aaa bbbTypeSize

Order - module plateProduct LM a b cTypeCeiling systemDiffuserSize

Ceiling system - see introductory section.

SizeBox type

Ød1mm

Ød2mm

Bmm

Cmm

Emm

Fmm

Hmm

Lmm

100 0 100 100 250 150 435 110 180-260 450

125 0 125 125 320 175 450 110 205-285 500

125 1 100 125 250 150 435 110 180-260 450

160 0 160 160 420 210 500 110 240-320 600

160 1 125 160 320 175 450 110 205-285 500

160 2 100 160 250 150 435 110 180-260 450

200 0 200 200 520 250 550 110 280-360 700

200 1 160 200 420 210 500 110 240-320 600

200 2 125 200 320 175 450 110 205-285 500

250 0 250 250 620 300 630 90 330-410 800

250 1 200 250 520 250 550 110 280-360 700

250 2 160 250 420 210 500 110 240-320 600

315 0 315 315 620 365 620 90 395-475 800

315 1 250 315 620 300 630 90 330-410 800

315 2 200 315 520 250 550 110 280-360 700

400 1 315 400 620 365 620 90 395-475 800

400 2 250 400 620 300 630 90 330-410 800

L × BF

E

C

HØd2

Ø d

1

Ordering exampleProduct MBA a bbb cccTypeBox type

0 1 2

Duct connection Ød1Diffuser connection Ød2

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Plain diffuser LCA

Technical data

CapacityVolume flow q [l/s] and [m3/h], total pressure pt [Pa], throwl0.2 [m] and sound level LWA [dB(A)] can be seen in the dia-grams.

Frequency-related sound effect levelThe sound effect level in the frequency band is defined asLWA+Kok. Kok values are specified in charts beneath the dia-grams on the following pages. Kok values for LCA without abox are available on request.

Quick selection, supply air

Sound attenuationSound attenuation of the diffuser ΔL from duct to room,including end reflection, see table below

BalancingBalancing data is contained in a separate brochure.

Throw l0.2The throw is specified at a terminal velocity of 0.2 m/s.

Air jet distributionlb = Distance from the diffuser to the point where there is

maximum dispersal.bv = Depth of the air jet on a vertical plane.bh = Width of the air jet on a horizontal plane.

Minimum pt=50 Pa pt=50 Pa

SizeBox type

Pi>5 Pa LWA=30dB(A) LWA=35dB(A)

l/s m3/h l/s m3/h l/s m3/h100 0 15 81 55 28 22 100

125 0 19 68 38 136 47 169

125 1 15 55 29 106 37 134

160 0 32 114 59 213 74 268

160 1 19 68 39 141 53 193

160 2 15 55 35 127 45 163

200 0 54 193 74 266 93 334

200 1 32 114 76 272 98 352

200 2 19 68 56 200 67 240

250 0 80 290 122 439 145 523

250 1 54 193 94 338 126 455

250 2 32 114 100 358 120 431

315 0 111 398 150 541 176 634

315 1 80 290 135 487 167 603

315 2 54 193 99 357 142 513

400 1 111 398 177 637 209 754

400 2 80 290 126 453 174 627

SizeBox type

Centre frequency Hz

63 125 250 500 1K 2K 4K 8K100 0 25 20 17 22 22 26 24 25

125 0 20 15 11 20 16 23 23 17

125 1 21 16 12 20 18 25 23 26

160 0 18 14 13 13 24 21 23 26

160 1 21 16 11 19 20 22 23 27

160 2 20 15 11 21 21 26 24 25

200 0 19 15 13 19 22 19 22 24

200 1 18 14 11 13 23 21 22 24

200 2 21 16 9 18 19 21 23 25

250 0 17 13 10 18 18 21 23 23

250 1 20 16 10 17 18 19 22 23

250 2 19 14 10 15 22 18 21 23

315 0 12 9 9 15 14 18 20 23

315 1 16 12 8 17 17 18 22 22

315 2 19 15 8 18 16 18 21 21

400 1 10 7 7 15 10 15 18 21

400 2 14 10 7 15 15 17 19 21

15 20 30 40 50 60 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

60 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA

l0.2 [m]

100 125 160 200 250 315400

bh

bh

bh

bh

bh

bv

lb lb

lb lb

lb

lb

lb = 0.6 × l02 bv = 0.05 × l02

lb = 0.4 × l02 bh = 1.3 × l02

bh = 1.0 × l02 lb = 0.5 × l02

bh = 0.4 × l02 lb = 0.5 × l02

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Technical data

LCA without box

LCA with box

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 2 -1 -5 -14 -21 -27

20 30 40 50 60 70 80 100 150 200 300 400 500qV [l/s]

5

7

10

15

20

30

50

70

100

150pt [Pa]

80 100 150 200 300 400 500 700 1000 1500qV [m3/h]

LCA

LWA dB(A)

100 125 160 200 250 315400

20

25

30

35

40

45

50

10 15 20 30 40 50 60qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

40 50 60 70 80 90 100 150 200qV [m3/h]

LCA-100 + MBA-0-100/100

LWA dB(A)20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-100

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 2 -2 -6 -13 -14 -19

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

0 x 1.5 + 12 x 1.1 + 13

0 x 1.2 + 8 x 1 + 9

0 x 1.1 + 4 x 1 + 5

20 30 40 50 60 70 80 100 150 200 300 400 500qV [l/s]

3

45

7

10

15

20

30

50

70

100

150pt [Pa]

80 100 150 200 300 400 500 700 1000 1500qV [m3/h]

LCA

LWA dB(A)

100 125 160 200 250 315

400

20

25

30

35

40

45

50

10 15 20 30 40 50 60 70 80qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

40 50 60 70 80 90 100 150 200 250qV [m3/h]

LCA-100 + MBA-0-100/100

LWA dB(A)

20

25

30

35

40

45

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Technical data

Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 1 -2 -6 -11 -18 -23

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 4 -2 -7 -15 -17 -23

20 30 40 50 60 70 80 90qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

80 90 100 150 200 250 300qV [m3/h]

LCA-125 + MBA-0-125/125

LWA dB(A)

20

25

30

35

40

45

50

15 20 30 40 50 60 70 80qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

60 70 80 90 100 150 200qV [m3/h]

LCA-125 + MBA-1-100/125

LWA dB(A)

20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-125

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 5 2 0 -2 -5 -10 -16 -26

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 2 -3 -6 -13 -9 -24

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

0 x 1.5 + 12 x 1.1 + 13

1 x 1.3 + 10 × 1.1 + 6

0 x 1.2 + 8 × 1 + 9

1 x 1.1 + 4 × 1 + 1

0 x 1.1 + 4 x 1 + 5

1 x 1.05 + 2 × 1 + 0

15 20 30 40 50 60 70 80 90qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

60 70 80 90 100 150 200 250 300qV [m3/h]

LCA-125 + MBA-0-125/125

LWA dB(A)20

25

30

35

40

45

50

10 15 20 30 40 50 60 70 80 90qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

40 50 60 70 80 100 150 200 300qV [m3/h]

LCA-125 + MBA-1-100/125

LWA dB(A)20

25

30

35

40

45

50

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Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 1 -2 -6 -13 -17 -22

Hz 63 125 250 500 1K 2K 4K 8K

Kok 7 4 6 -3 -10 -16 -19 -24

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 3 -1 -8 -13 -15 -21

30 40 50 60 70 80 90 100 150qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 250 300 400 500qV [m3/h]

LCA-160 + MBA-0-160/160

LWA dB(A)

20

25

30

35

40

45

50

20 30 40 50 60 70 80 90 100 120qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

80 90 100 150 200 300 400qV [m3/h]

LCA-160 + MBA-1-125/160

LWA dB(A)20

25

30

35

40

45

50

10 15 20 30 40 50 60 70 80 90qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

40 50 60 70 80 100 150 200 300qV [m3/h]

LCA-160 + MBA-2-100/160

LWA dB(A)

20

25

30

35

40

45

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-160

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 0 -2 -5 -12 -17 -24

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 2 -2 -6 -11 -15 -22

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 3 -2 -8 -13 -14 -20

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

012

x 1.8x 1.5x 1.3

+ 16+ 14+ 9

x 1.1x 1.1x 1.1

+ 11+ 8+ 1

012

x 1.3x 1.2x 1.1

+ 9+ 7+ 2

x 1x 1x 1

+ 5+ 1+ 0

012

x 1.1x 1.1x 1

+ 4+ 2+ 1

x 1x 1x 1

+ 1+ 0+ 0

30 40 50 60 70 80 90 100 150qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 250 300 400 500qV [m3/h]

LCA-160 + MBA-0-160/160

LWA dB(A)20

25

30

35

40

45

50

10 15 20 30 40 50 60 70 80 100 150qV [l/s]

10

15

20

30

50

70

100

150

200250

pt [Pa]

40 50 60 70 80 100 150 200 300 400 500qV [m3/h]

LCA-160 + MBA-1-125/160

LWA dB(A)

20

25

30

35

40

45

50

10 15 20 30 40 50 60 70 80 90qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

40 50 60 70 80 100 150 200 300qV [m3/h]

LCA-160 + MBA-2-100/160

LWA dB(A)

20

25

30

35

40

45

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Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 0 -1 -7 -14 -16 -17

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 0 0 -8 -12 -15 -19

Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 4 -1 -9 -15 -16 -20

40 50 60 70 80 90 100 150 200qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 250 300 400 500 700qV [m3/h]

LCA-200 + MBA-0-200/200

LWA dB(A)20

25

30

35

40

45

50

30 40 50 60 70 80 90 100 150 200qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 300 400 500 700qV [m3/h]

LCA-200 + MBA-1-160/200

LWA dB(A)

20

25

30

35

40

45

50

20 30 40 50 60 70 80 90 100 120qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

80 90 100 150 200 300 400qV [m3/h]

LCA-200 + MBA-2-125/200

LWA dB(A)

20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-200

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 0 -1 -6 -14 -18 -33

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 1 -1 -8 -11 -16 -16

Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 3 -2 -8 -12 -15 -21

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

012

x 2.5x 1.9x 1.4

+ 24+ 21+ 9

x 1.2x 1.2x 1.1

+ 21+ 11+ 1

012

x 1.5x 1.3x 1.2

+ 10+ 10+ 6

x 1.1x 1.1x 1

+ 5+ 3+ 0

012

x 1.2x 1.1x 1.1

+ 5+ 4+ 3

x 1x 1x 1

+ 0+ 0+ 0

50 60 70 80 90 100 150 200qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

200 300 400 500 700qV [m3/h]

LCA-200 + MBA-0-200/200

LWA dB(A)

20

25

30

35

40

45

50

30 40 50 60 70 80 90 100 150 200qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 300 400 500 700qV [m3/h]

LCA-200 + MBA-1-160/200

LWA dB(A)

20

25

30

35

40

45

50

15 20 30 40 50 60 70 80 100 150qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

60 70 80 100 150 200 300 400 500qV [m3/h]

LCA-200 + MBA-2-125/200

LWA dB(A)

20

25

30

35

40

45

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Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 -1 -1 -6 -13 -17 -18

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 2 -2 -6 -12 -16 -28

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 3 -2 -7 -12 -13 -18

80 90 100 150 200 250qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700qV [m3/h]

LCA-250 + MBA-0-250/250

LWA dB(A)20

25

30

35

40

45

50

50 60 70 80 90 100 150 200 250qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

200 300 400 500 700qV [m3/h]

LCA-250 + MBA-1-200/250

LWA dB(A)

20

25

30

35

40

45

50

30 40 50 60 70 80 90 100 150 200 250qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 300 400 500 700qV [m3/h]

LCA-250 + MBA-2-160/250

LWA dB(A)

20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-250

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 0 -2 -6 -11 -17 -29

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 1 -2 -7 -11 -16 -27

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 3 -3 -9 -10 -14 -18

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

012

x 2.3x 1.9x 1.4

+ 21+ 18+ 12

x 1.2x 1.2x 1.1

+ 19+ 8+ 7

012

x 1.4x 1.2x 1.1

+ 10+ 7+ 6

x 1.1x 1x 1

+ 5+ 0+ 0

012

x 1.1x 1.05x 1.05

+ 5+ 2+ 2

x 1x 1x 1

+ 2+ 0+ 0

80 90 100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700 1000qV [m3/h]

LCA-250 + MBA-0-250/250

LWA dB(A)20

25

30

35

40

45

50

50 60 70 80 90 100 150 200 250qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

200 300 400 500 700qV [m3/h]

LCA-250 + MBA-1-200/250

LWA dB(A)

20

25

30

35

40

45

50

30 40 50 60 70 80 90 100 150 200 250qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 300 400 500 700qV [m3/h]

LCA-250 + MBA-2-160/250

LWA dB(A)

20

25

30

35

40

45

50

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Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 -2 -1 -5 -15 -20 -25

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 1 -2 -6 -13 -24 -25

Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 2 -2 -7 -13 -16 -26

100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

400 500 700 1000qV [m3/h]

LCA-315 + MBA-0-315/315

LWA dB(A)20

25

30

35

40

45

50

80 90 100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700 1000qV [m3/h]

LCA-315 + MBA-1-250/315

LWA dB(A)

20

25

30

35

40

45

50

40 50 60 70 80 90 100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

150 200 300 400 500 700 1000qV [m3/h]

LCA-315 + MBA-2-200/315

LWA dB(A)

20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-315

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 7 4 -3 0 -4 -15 -22 -35

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 1 -2 -6 -13 -17 -29

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 1 -3 -7 -10 -13 -25

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

012

x 2.4x 1.9x 1.6

+ 21+ 20+ 17

x 1.2x 1.2x 1.2

+ 22+ 16+ 2

012

x 1.6x 1.2x 1.2

+ 12+ 11+ 9

x 1.1x 1.1x 1.1

+ 12+ 6+ 1

012

x 1.2x 1.2x 1.1

+ 6+ 5+ 3

x 1x 1x 1

+ 10+ 1+ 0

100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

400 500 700 1000qV [m3/h]

LCA-315 + MBA-0-315/315

LWA dB(A)20

25

30

35

40

45

50

80 90 100 150 200 300 350qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700 1000qV [m3/h]

LCA-315 + MBA-1-250/315

LWA dB(A)20

25

30

35

40

45

50

50 60 70 80 90 100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

200 300 400 500 700 1000qV [m3/h]

LCA-315 + MBA-2-200/315

LWA dB(A)

20

25

30

35

40

45

50

Chapter Ceilingdiffusers-Formo.book Page 95 Tuesday, December 12, 2006 11:50 AM

96 We reserve the right to make changes without prior notice

comfort | ceiling diffusers

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2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Plain diffuser LCA

Technical data

Hz 63 125 250 500 1K 2K 4K 8K

Kok 9 6 2 -3 -5 -12 -16 -21

Hz 63 125 250 500 1K 2K 4K 8K

Kok 11 8 3 -2 -8 -13 -23 -24

100 150 200 300 400qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

400 500 700 1000qV [m3/h]

LCA-400 + MBA-1-315/400

LWA dB(A)

20

25

30

35

40

45

50

70 80 90 100 150 200 300 400qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700 1000qV [m3/h]

LCA-400 + MBA-2-250/400

LWA dB(A)20

25

30

35

40

45

50

5 10 15 20 30 40 50 70 100 150 200 300 500qV [l/s]

1

2

3

4

5

678

10l0.2 [m]

20 30 40 50 70 100 150 200 300 500 700 1000 1500qV [m3/h]

LCA-400

l0.2 [m]

Hz 63 125 250 500 1K 2K 4K 8K

Kok 8 5 -2 -3 -3 -16 -30 -35

Hz 63 125 250 500 1K 2K 4K 8K

Kok 10 7 1 -2 -6 -11 -16 -28

MBA Δpt[Pa] ΔLWA[dB] Δpt[Pa] ΔLWA[dB]

1 x 1.8 + 21 x 1.2 + 23

2 x 1.5 + 10 × 1.1 + 4

1 x 1.5 + 8 × 1 + 9

2 x 1.2 + 6 × 1 + 0

1 x 1.2 + 3 x 1 + 4

2 x 1 + 0 × 1 + 0

100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

400 500 700 1000qV [m3/h]

LCA-400 + MBA-1-315/400

LWA dB(A)20

25

30

35

40

45

50

80 90 100 150 200 300qV [l/s]

10

15

20

30

50

70

100

150

200

250pt [Pa]

300 400 500 700 1000qV [m3/h]

LCA-400 + MBA-2-250/400

LWA dB(A)

20

25

30

35

40

45

50

Chapter Ceilingdiffusers-Formo.book Page 96 Tuesday, December 12, 2006 11:50 AM